Apparatus for the semicoking of coal, slate, or other bituminous substances



June 26, 1923. I',460,0 24

KARL PRINZ ZU L6W EN5TEIN APPARATUS FOR THE SEMICOKING OF COAL, SLATE,OR OTHER BITUMINOUS SUBSTANCES Filed Mg. 22, 1921 fiz'ryjaZwaasZh zPatented June 26, 1923.

m1. rnmz zu Lownns'rnm, or BERLIN, Grammar.

APPABATUSFOR THE SEMICOKING 0]? GOAL, SLATE, OR OTHER BITUMINOUSSUBSTANCES.

Application filed August 22, 1921. Serial No. 494,213.

To all whom it may concern:

Be it known that I, KARL PRINZ ZU Lownns'rnm, citizen of the GermanRepublic, and residin at No. 11 Lutzow-Ufer, in the city of Ber in, inthe Republic of Germany, have invented certain new and usefulImprovements in Apparatus for the Semicoking of Coal, Slate, or OtherBituminous Substances, of which the following is a specification.

This invention. relates to the semi-coking of coal, slate, and otherbituminous substances and consistschiefly in the combination of ahorizontal rotary disk with a hood arranged above it, heating-meansprovided below it, and a scraper arranged within the hood and upon thedisk. The substance to be coked is conducted to and upon the disk insuch a manner that it forms an annular layer which is rotated by meansof, and together with, the rotating disk, the speed of which is suchthat the material carried round is semi-coked during one revolution, thesemicoking bein completed when the material arrives at e scraper inorder tobe conducted off the disk and out of the apparatus. Thesubstance to be treated forms a thin layer upon the rotary disk, andtherim of this latter which carries that layer is heated from below, asismore fully described hereinafter in connection with the drawing.

The novel construction of the apparatus for semi-coking coal etc. andthe novel manner of working made possible by it, offer severaladvantages. First of all, the material to be semi-coked does not stickfast to the heated surface and does not agglomerate in itself, so thatno interruption of the procedure by reason of such occurrences takesplace and consequently; a'continuous service is warranted. .Theexpenditure of power 1s very small, the wear and tear of the work ngparts is dlminished to a minimum, and no dust is produced because thecoal or other substance under treatment is at rest whilst being carriedro'und over the furnace or other heating means. Also the, saving of timeresulting from the novel construction and manner of working is valuable,furthermore the smallness of the space required, the

l more, as a plurality of the rotary disks may be arranged one above theother or others.

In order to make my invention more clear,

I refer to the accompanying drawing which shows by way of example a formof con- The rotary disk 0. is affixed to the upper 'end of a verticalshaft arranged below its centre and driven by any suitable means withsuch a speed as appropriate to the purpose. Above the disk a is ahoodcarrying I a shaft-like tube servin for conducting the material tobe treate to the disk. The lower end of the shaft or tube terminatesshortly above the'upper surface of said disk so that the materialcarried away upon the disk forms a thin annular layer, the thickness" ofwhich depends upon the distance of (tiheklower edge of the shaft or tubefrom the Below the disk at is, in the example shown, a furnace,preferably of circular or annular shape, having an annular heatingchannel 72. located below the rim of the disk (1. The hot gases comingfrom any source are led through the channel so as to heat especially therim of the disk at.

The space above the disk is closed by a liquid metal-seal formed by anannular basin supported by the outer part of the furnace and containm'ga suitable metal such as tin or lead when in their molten state. The rimof the hood e dips into the metal f, as does also a flange d attachedtothe lower surface of the disk a. The annular basin is. not

completely closed, but interrupted by a passage i through which thematerial treated is led out of the ap aratus. The passage 5 lies closeto the'sha t or tube b, in front of it with respect to the direction ofrotation of the disk, and radially inwards from it is a scraper c, thelower edge of which is in contact with the upper surface of the disk andscrapes the'material treated off the disk and conducts it to and throughthe passage 2' before the fresh material is fed upon the disk throughthe shaft or tube 6.

The vapors or gases arising during the coking operation are collected inthe hood e and sucked ofi in known manner and by known means through thepipe 9.

Having now described my invention, what I desire to secure by a Patentof the United States is: V

1. An apparatus of the character described comprising in combination ahorizontally arranged disk, means for housing said disk, means forrotating said disk, an annular heatin channel arranged below said diskwhere y heat may be applied directly to the lower face of said disk anda feedin tube arranged above said disk substantia 1y as and for thepurpose specified.

2. An apparatus for semi-coking coal, slate and other bituminoussubstances, comprising in combination a rotary disk, a hood forcompletely housing the upper face of said disk, means for supplying.heat directly to the lower face of said disk, a feeding tube extendingthrough'said hood and terminating in spaced relation to the upper faceof said disk, and an outlet leading. from the central portion of thehood, substantially as and for the purpose specified.

and adapted to rest upon the upper face of said disk substantially asand for the pur-' pose specified.

4. An ap' aratus for semi-coking 'ooal, slate and ot er bituminoussubstances, comprising, in combination, a furnace, an annular heatingchannel arranged in said furnace, a horizontally arranged diskpositioned above said furnace whereby the outer periphery thereof willextend above said annular-heating channel, an annular basin arrangedabove said furnace containing a molten metal, a flange formed with saiddisk and adapted to extend within the molten metal in said basin, a hoodextending over said disk, a rim formed with said hood and adapted toextend within the metal arranged in said basin, a feeding tube extendmgthrough said hood and terminating adjacent the upper face of said disk,and a scraper arranged upon the upper face of said disk substantially asand for the purpose specified. A

In testimony whereof I- aflix my signature in presence of two witnesses.

KARL PRINZ ZU LoWENsTEIN.

Witnesses: I

EMIL STEIN, A, PoHL.

